Request key frame in vpuenc (Freescale)

[Chuck Crisler]

I can't remember exactly, but there is an option in the encoder structure
to instruct the VPU encoder to generate an I-Frame. Just make sure that you
clear the flag after the I-Frame is generated. Of course, the structure
item name may vary depending on which VPU you are using. Your encoder
element probably already controls when to generate an I-Frame. When I
worked with a Freescale VPU we had to determine the I-Frame rate ourselves,
the encoder didn't count the frames.


On Thu, Sep 26, 2013 at 8:25 PM, Javier Jardón <jjardon at gnome.org> wrote:

> Hi,
>
> I need to generate a keyframe in a specific time.
> Looking to the code of vpuenc [1], seems that it doesnt handle events from
> downstream (GST_EVENT_CUSTOM_DOWNSTREAM) to check if the event request
> a keyframe:
>
> gst_video_event_is_force_key_unit (event)
>
> (and no, it doesnt derive from the GstVideoEncoder baseclass  class)
> This can be easily implementable but my question is:
> Any of you know the specific option I have to pass to the vpu to
> generate a keyframe? Or any other way? I read about
> encparam->forceIPicture , but Im not sure Im looking in the correct
> direction
>
> Could someone help me with this?
>
> Thanks
>
> [1]
> http://download.ossystems.com.br/bsp/freescale/source/gst-fsl-plugins-3.0.7.tar.gz
> --
> Javier Jardón Cabezas
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